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EP0158870B1 - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
EP0158870B1
EP0158870B1 EP85103456A EP85103456A EP0158870B1 EP 0158870 B1 EP0158870 B1 EP 0158870B1 EP 85103456 A EP85103456 A EP 85103456A EP 85103456 A EP85103456 A EP 85103456A EP 0158870 B1 EP0158870 B1 EP 0158870B1
Authority
EP
European Patent Office
Prior art keywords
toothbrush
housing
pressure
user
microprocessor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85103456A
Other languages
German (de)
French (fr)
Other versions
EP0158870A1 (en
Inventor
Hans-Dieter Prof. Dr. Mierau
Thomas Dipl.-Phys. Spindler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blendax GmbH
Original Assignee
Blendax Werke R Schneider and Co GmbH
Blendax GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6233893&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0158870(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Blendax Werke R Schneider and Co GmbH, Blendax GmbH filed Critical Blendax Werke R Schneider and Co GmbH
Priority to AT85103456T priority Critical patent/ATE33919T1/en
Priority to DE8686112622T priority patent/DE3562704D1/en
Publication of EP0158870A1 publication Critical patent/EP0158870A1/en
Application granted granted Critical
Publication of EP0158870B1 publication Critical patent/EP0158870B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3418—Rotation around the axis of the toothbrush handle
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0004—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means
    • A46B15/0012—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means with a pressure controlling device
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0038—Arrangements for enhancing monitoring or controlling the brushing process with signalling means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/221—Control arrangements therefor
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C2204/00—Features not otherwise provided for
    • A61C2204/002—Features not otherwise provided for using batteries

Definitions

  • the present invention relates to an electrically powered toothbrush that allows the user to determine and maintain the correct contact pressure of the brush when cleaning the dentition.
  • An essential criterion for the optimal functioning of a toothbrush, in particular an electric toothbrush is the maintenance of the correct contact pressure during use. If the contact pressure is too low, adequate cleaning will not occur. If, on the other hand, the pressure is too high, the gums become irritated, which can lead to bleeding gums and, under certain circumstances, even for a long period of time, to regression of the gums and exposure of the tooth necks. It is therefore an essential prerequisite for the usefulness of brushing teeth, especially when using an electric toothbrush, that brushing is carried out with the correct contact pressure.
  • the present invention is therefore based on the object of providing an electrically driven toothbrush which allows the user to set the appropriate contact pressure when the brush is in operation and to maintain it while brushing the teeth.
  • the solution to this problem is to provide a toothbrush with an electric drive of known construction with a device for the optical or acoustic display of the optimal contact pressure during brushing.
  • a pressure transducer is attached which absorbs the contact pressure which is effective on the brush head and which is connected to a microprocessor in which an individual target pressure value of the user is stored, which is compared with the actual pressure value effective on the brush, the microprocessor being coupled to a signal transmitter in such a way that a perceptible signal is triggered when the stored target pressure value is exceeded or undershot.
  • this toothbrush is equipped with a timer that monitors the tooth brushing time, which is put into operation when the toothbrush is handled, and a display element, the timer, controlled by a load measuring device log, should only run during the operating time 1 in which one predetermined load is exerted on the bristle part, and generates a signal after a preset minimum operating time of the timer.
  • this known toothbrush does not have in common.
  • a housing (1) In a housing (1) are an electric motor (2), accumulator or battery (3), a gear (4) for converting the rotational movement of the motor into a swinging movement of the plug-on axis (5) and plug-on brush (11), a switch (6) and the axle bearing (7) housed.
  • a pressure sensor (8) on the bearing (7) absorbs the contact pressure acting on the brush head (11) and passes it on to a microprocessor (9).
  • a target pressure value is stored in the microprocessor (9) and is compared with the incoming actual pressure value effective on the brush. If both values are identical, there is no reaction.
  • the microprocessor (9) triggers an optical or acoustic signal that can be perceived by the user via a signal generator (10), which causes the user to check the pressure of the toothbrush on the teeth so change until the signal goes off.
  • Figure 2 shows the schematic structure of the control loop described above.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

An electrically operated toothbrush comprises a housing with an electromotor inside the housing. The motor includes a rotatable shaft, means converting the rotary movement of the rotary shaft to an oscillatory movement of a brush support shaft which extends through the housing, and a toothbrush is attached to the free end of the support shaft outside of the housing. Sensing structure generates an impulse representative of the pressure exerted on the toothbrush during toothbrushing. A microprocessor or electronic device receives the impulses from the sensing structure during toothbrushing and compares those impulses with stored information representative of a predetermined optimum pressure range for toothbrushing. A signal transmittor releases a signal perceptible by the user of the toothbrush when the pressure on the toothbrush exceeds the predetermined optimum pressure range.

Description

Die vorliegende Erfindung betrifft eine elektrisch angetriebene Zahnbürste, die es dem Benutzer gestattet, den richtigen Anpreßdruck der Bürste bei der Reinigung des Gebisses zu ermitteln und einzuhalten.The present invention relates to an electrically powered toothbrush that allows the user to determine and maintain the correct contact pressure of the brush when cleaning the dentition.

Ein wesentliches Kriterium für die optimale Funktion einer Zahnbürste, insbesondere einer Elektrozahnbürste, ist die Einhaltung eines richtigen Anpressdrucks beim Gebrauch. Ist der Anpressdruck zu niedrig, so tritt keine ausreichende Reinigung ein. Ist hingegen der Druck zu hoch, wird das Zahnfleisch gereizt, was zu Zahnfleischblutungen und, unter Umständen, auf längere Dauer sogar zur Rückbildung des Zahnfleisches und Freilegung der Zahnhälse führen kann. Es ist daher eine wesentliche Voraussetzung für die Nützlichkeit des Zähneputzens, insbesondere bei Anwendung einer elektrischen Zahnbürste, daß mit dem richtigen Anpressdruck geputzt wird.An essential criterion for the optimal functioning of a toothbrush, in particular an electric toothbrush, is the maintenance of the correct contact pressure during use. If the contact pressure is too low, adequate cleaning will not occur. If, on the other hand, the pressure is too high, the gums become irritated, which can lead to bleeding gums and, under certain circumstances, even for a long period of time, to regression of the gums and exposure of the tooth necks. It is therefore an essential prerequisite for the usefulness of brushing teeth, especially when using an electric toothbrush, that brushing is carried out with the correct contact pressure.

Die vorliegende Erfindung geht daher von der Aufgabenstellung aus, eine elektrisch angetriebene Zahnbürste zu schaffen, die es dem Benutzer gestattet, den geeigneten Anpressdruck beim Betrieb der Bürste einzustellen und während des Zähneputzens aufrecht zu erhalten.The present invention is therefore based on the object of providing an electrically driven toothbrush which allows the user to set the appropriate contact pressure when the brush is in operation and to maintain it while brushing the teeth.

Die Lösung dieser Aufgabe besteht darin, eine Zahnbürste mit elektrischem Antrieb an sich bekannter Konstruktion mit einer Vorrichtung zur optischen oder akustischen Anzeige des optimalen Anpressdrucks während des Zähneputzens zu versehen.The solution to this problem is to provide a toothbrush with an electric drive of known construction with a device for the optical or acoustic display of the optimal contact pressure during brushing.

Dies wird technisch dadurch realisiert, daß, vorzugsweise am zur Aufnahme des Bürstenschaftes vorgesehenen Achsenlager, ein Druckaufnehmer angebracht ist, der den an der Aufsteckbürste wirksamen Anpreßdruck aufnimmt und der mit einem Mikroprozessor verbunden ist, in dem ein individueller Soll-Druckwert des Benutzers gespeichert ist, der mit dem an der Bürste wirksamen Ist-Druckwert verglichen wird, wobei der Mikroprozessor mit einem Signalgeber so gekoppelt ist, daß beim Über- oder Unterschreiten des eingespeicherten Soll-Anpressdruckwertes ein wahrnehmbares Signal ausgelöst wird.This is technically realized in that, preferably on the axle bearing provided for receiving the brush shaft, a pressure transducer is attached which absorbs the contact pressure which is effective on the brush head and which is connected to a microprocessor in which an individual target pressure value of the user is stored, which is compared with the actual pressure value effective on the brush, the microprocessor being coupled to a signal transmitter in such a way that a perceptible signal is triggered when the stored target pressure value is exceeded or undershot.

Aus der DE-PS 3 117 160 ist bereits eine Elektrozahnbürste bekannt, die dem Benutzer eine Kontrolle der Zahnputzzeit gestatten soll.From DE-PS 3 117 160 an electric toothbrush is already known, which is intended to allow the user to check the tooth brushing time.

Dies geschieht dadurch, daß diese Zahnbürste mit einem die Zahnputzdauer überwachenden Zeitgeber, der bei Handhabung der Zahnbürste in Betrieb gesetzt wird, und einem Anzeigeelement ausgestattet ist, wobei der Zeitgeber, von einer Belastungsmesseinrichtllog gesteuert, nur in derjenigen Betriebszeit laufe 1 soll, in der eine vorgegebene Belastung auf das Borstenteil ausgeübt wird, und nach Ablauf einer voreingestellten Mindestbetriebszeit der Zeitgeber ein Signal erzeugt.This is done in that this toothbrush is equipped with a timer that monitors the tooth brushing time, which is put into operation when the toothbrush is handled, and a display element, the timer, controlled by a load measuring device log, should only run during the operating time 1 in which one predetermined load is exerted on the bristle part, and generates a signal after a preset minimum operating time of the timer.

Mit der Aufgabenstellung der vorliegenden Erfindung, die Einhaltung des optimalen Anpressdrucks während der Benutzung der Zahnbürste zu gestatten und deren Lösung, Abweichungen nach unten und oben von einem individuell gespeicherten Soll-Druckwert des Benutzers mittels eines Signalgebers anzuzeigen, hat diese bekannte Zahnbürste also nicht gemeinsam.With the task of the present invention, to allow the optimal contact pressure to be maintained during the use of the toothbrush and its solution to indicate deviations downwards and upwards from an individually stored target pressure value of the user by means of a signal transmitter, this known toothbrush does not have in common.

In Figur 1 wird eine erfindungsgemäß gestaltete elektrische Zahnbürste dargestellt :1 shows an electric toothbrush designed according to the invention:

In einem Gehäuse (1) sind Elektromotor (2), Akkumulator oder Batterie (3), ein Getriebe (4) zur Umwandlung der Drehbewegung des Motors in eine Schwingbewegung der Aufsteckachse (5) und Aufsteckbürste (11), ein Schalter (6) und das Achsenlager (7) untergebracht.In a housing (1) are an electric motor (2), accumulator or battery (3), a gear (4) for converting the rotational movement of the motor into a swinging movement of the plug-on axis (5) and plug-on brush (11), a switch (6) and the axle bearing (7) housed.

Ein Druckaufnehmer (8) am Lager (7) nimmt den an der Aufsteckbürste (11) wirkenden Anpressdruck auf und gibt ihn an einen Mikroprozessor (9) weiter.A pressure sensor (8) on the bearing (7) absorbs the contact pressure acting on the brush head (11) and passes it on to a microprocessor (9).

In dem Mikroprozessor (9) ist ein Soll-Druckwert gespeichert, der mit dem an der Bürste wirksamen, eingehenden Ist-Druckwert verglichen wird. Wenn beide Werte identisch sind, erfolgt keine Reaktion.A target pressure value is stored in the microprocessor (9) and is compared with the incoming actual pressure value effective on the brush. If both values are identical, there is no reaction.

Ist der Abpressdruck an der Aufsteckbürste (11) jedoch höher oder niedriger als der eingespeicherte Sollwert, wird vom Mikroprozessor (9) ein optisches oder akustisches, vom Benutzer wahrnehmbares Signal über einen Signalgeber (10) ausgelöst, das den Benutzer veranlaßt, den Druck der Zahnbürste auf die Zähne so zu verändern, bis das Signal erlischt.However, if the pressure on the brush head (11) is higher or lower than the stored setpoint, the microprocessor (9) triggers an optical or acoustic signal that can be perceived by the user via a signal generator (10), which causes the user to check the pressure of the toothbrush on the teeth so change until the signal goes off.

Figur 2 zeigt den schematischen Aufbau des oben beschriebenen Regelkreises.Figure 2 shows the schematic structure of the control loop described above.

Claims (2)

1. Electrically operated toothbrush being fitted with a pressure sensor (8) which records the effective pressure acted against it and which is connected to a microprocessor (9), in which the optimal individual pressure range of the user is recorded, which is compared with the effective actual pressure value effective at the brush during cleaning of the teeth, the microprocessor (9) being connected to a signal transmitter (10) in such a way that in case of exceeding or remaining under the recorded optimum pressure range a signal perceptible by the user is released.
2. Electrically operated toothbrush according to claim 1, characterized in that the pressure sensor (8) is mounted at the axle bearing (7) provided for the incorporation of the brush shank (5).
EP85103456A 1984-04-18 1985-03-23 Toothbrush Expired EP0158870B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT85103456T ATE33919T1 (en) 1984-04-18 1985-03-23 TOOTHBRUSH.
DE8686112622T DE3562704D1 (en) 1985-03-23 1985-03-23 Electric toothbrush

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3414623 1984-04-18
DE3414623A DE3414623C1 (en) 1984-04-18 1984-04-18 Toothbrush

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP86112622.5 Division-Into 1985-03-23

Publications (2)

Publication Number Publication Date
EP0158870A1 EP0158870A1 (en) 1985-10-23
EP0158870B1 true EP0158870B1 (en) 1988-05-04

Family

ID=6233893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103456A Expired EP0158870B1 (en) 1984-04-18 1985-03-23 Toothbrush

Country Status (5)

Country Link
US (1) US4698869A (en)
EP (1) EP0158870B1 (en)
JP (1) JPS6122812A (en)
AT (1) ATE33919T1 (en)
DE (2) DE3414623C1 (en)

Cited By (7)

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WO1992010979A1 (en) * 1990-12-24 1992-07-09 Elektro-Wärme-Technik Ihn. Günter Petz Electric toothbrush
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DE4332092C2 (en) * 1993-09-22 2002-06-13 Petz Elektro Waerme Techn Electric toothbrush
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Also Published As

Publication number Publication date
US4698869A (en) 1987-10-13
DE3562444D1 (en) 1988-06-09
JPS6122812A (en) 1986-01-31
DE3414623C1 (en) 1985-10-10
EP0158870A1 (en) 1985-10-23
ATE33919T1 (en) 1988-05-15

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